sample-java-extension-decorator

Showing how to define and consume extension points in Eclipse Dirigible — no dedicated annotation: an extension point is a plain interface and a contribution is a @Component implementing it.

Layout

sample-java-extension-decorator/   # Dirigible project (registry path)
└── demo/
    └── extension/
        ├── SampleExtensionPoint.java  # plain interface — the extension point
        ├── SampleContribution.java    # @Component implementing it — a contribution
        ├── ExtensionConsumer.java     # @Controller — Extensions.find(...) lookup
        └── InjectingConsumer.java     # @Controller — List<SampleExtensionPoint> collection injection

Usage

Drop this project into the Dirigible IDE (clone via the Git perspective and publish, or copy it to /registry/public/sample-java-extension-decorator/). The synchronizer compiles the classes; the bean container registers SampleContribution as a @Component.

Consuming extensions

Two ways, both returning the same contributions:

• Collection injection (preferred, Spring-style) — InjectingConsumer takes a List<SampleExtensionPoint> in its constructor; the bean container injects every contribution. Verify: GET /services/java/sample-java-extension-decorator/demo/extension/InjectingConsumer/injected-contributions
• Programmatic lookup — ExtensionConsumer calls Extensions.find(SampleExtensionPoint.class). Verify: GET /services/java/sample-java-extension-decorator/demo/extension/ExtensionConsumer/contributions

Both return ["Hello from SampleContribution!"].

See the Develop guide and the Java SDK.